CN205815878U - Fine powder air-flow grinding machine - Google Patents

Abstract

nullA kind of fine powder air-flow grinding machine，It is characterized in: including: on motor spindle, be equipped with adjusting pad and separation wheel，Motor base is connected in and covers，Upper cover is connected in the gripper shoe of mill outdoor cabinets，The surrounding of motor base connects several gas connections，Mill outdoor cabinets is built-in with the indoor housing of mill，The cavity of the indoor housing of mill is mill room，It is fixed with several nozzles in the bottom of the nozzle fixed disk of the indoor housing of mill，The nozzle fixed disk of the indoor housing of mill is put on chassis，Lower end, chassis is connected with auxiliary gas connection，Fix at auxiliary gas connection and on seat, be fixed with several auxiliary gas connections，It is equipped with discharge lining at the center of nozzle fixed disk and chassis，It is provided with gap between separation wheel end face and nozzle fixed disk end face，Feeding mechanism and air inlet pipe are all connected on the outer circumference surface of mill outdoor cabinets，Connect in the lower end of discharge lining and have finished product discharging opening.It is rational in infrastructure, it is possible to the effective raw meal particle size that improves is distributed concentration degree, good product quality, low cost.

Description

Fine powder air-flow grinding machine

Technical field

This utility model relates to powder body disintegrating apparatus, specifically, is a kind of fine powder air-flow grinding machine.

Background technology

Prior art is processed for crushing material, generally uses mechanical activation comminution or the mode of air-flow pulverizing, to reach powder The demand of granularity.But the powder size distribution concentration degree that all these powder process modes are produced is not very good, super fine Shared large percentage, has a strong impact on the quality of product.The super fine additionally not entered in finished product arrived with air-flow Filter, the filtration of super fine can increase the loss of power consumption and filtration core, and yield rate is low, adds the cost of finished product.

Existing air-flow grinding machine, such as: Chinese patent application publication No.: CN 105312144 A discloses " ultra micro air-flow Grading mill ", it is a kind of mechanical crusher carrying out with jump bit and pulverizing, ultra micro air current classifying mill include connecting simultaneously source of the gas with The material inlet end that supply stream enters, and the material outlet end discharged for fine powder, disintegrating area directly connects formation with graded region Pulverizing chamber, air-flow passes through to enter into bottom rotating disk the pulverizing chamber that ultra micro air current classifying grinds, rotating disk with feeding from material inlet end Driven by turntable motor and rotate, be located between the liner plate on mill chamber inwall by the jump bit on rotating disk and disk edge Collision for several times makes material conglomeration be broken up and pulverize.In order to improve crushing effect, the shape of jump bit, quantity, height and position thereof Put and optimised can be designed as increasing the contact area with material, such as: include that there is the trapezoidal of oblique angle, or there is certain altitude Cylindricality.It addition, it is also possible to consider the gap reduced between jump bit and liner plate.Generally, liner plate is the gear ring with internal tooth, subtracts Little above-mentioned gap advantageously increases the impact dynamics between jump bit and liner plate, promotes that powder body is pulverized.The fine powder of crushed mistake Submit effect backspin at air-flow and be raised to the graded region at grading wheel place.Now, grading wheel motor the grading wheel rotated is driven Utilizing centrifugal force field produced by its blade that fine powder carries out classification, sufficiently fine fine silt can be followed air-flow and be entered through grading wheel Entering volute district and discharge from material outlet end, coarse granule then can be graded wheel and block and in its peripheral convolution.But owing to it is adopted Pulverizing with jump bit, shortcoming is that the particle size distribution of finished product is the most extremely concentrated, and it is higher to cross fine powder ratio.

Existing injector-type mill, such as: Chinese patent application publication No.: CN 103025433 A discloses " injecting type Grinding machine " its separation wheel is horizontal positioned, charging is on top, and nozzle is in bottom, and has collision component.Its utility model solves The problem remaining powder body in container, but have a collision component due to it, the ratio regular meeting crossing fine powder is high, and its container internal comminution and It is the highest that the architectural feature of sorting result in its particle size distribution concentration degree.

Summary of the invention

The purpose of this utility model is, overcomes the deficiencies in the prior art, pulverizes existing airflow milling and its granule divides The structure of choosing improves and innovative design, it is provided that a kind of rational in infrastructure, it is possible to the effective particle size distribution concentration degree that improves, minimizing The ratio of micropowders, and then improve product quality and reduce the fine powder air-flow machine of production cost.

Realize this utility model purpose employed technical scheme comprise that, a kind of fine powder air-flow grinding machine, it is characterized in that, including: horse Reaching and be equipped with adjusting pad on main shaft and be fixed with separation wheel, motor is connected on motor base, and motor base is connected in and covers, and upper cover is solid Being connected in the gripper shoe of mill outdoor cabinets, the surrounding of motor base connects several gas connections A cleaning motor spindle, grinds room Shell body is built-in with the indoor housing of mill, and the indoor housing of mill is successively by target disc and mill chamber lining, mill chamber lining and nozzle fixed disk phase Contact composition, the cavity of the indoor housing of mill is mill room, is fixed with several sprays in the bottom of the nozzle fixed disk of the indoor housing of mill Mouth, the nozzle fixed disk of the indoor housing of mill is put on chassis, and lower end, chassis is connected, auxiliary with the fixing seat of auxiliary gas connection B Help and on the fixing seat of gas connection B, be fixed with several auxiliary gas connection B, be equipped with row at the center of nozzle fixed disk and chassis Material lining, compresses the target disc of the indoor housing of mill, between separation wheel end face and nozzle fixed disk end face at the upper holding screw covered It is provided with the gap adjusted by adjusting pad, feeding mechanism and air inlet pipe to be all connected on the outer circumference surface of mill outdoor cabinets, row The lower end of material lining connects finished product discharging opening.

Preferably, described mill room is divided into six functional areas being connected, respectively: the air-flow of nozzle ejection drives material Elevated areas；The crushing material region that material clashes into target disc；Material is leading along the flowing of target disc end face under airflow function To region；Material is along the decline region of target disc center facade；Material enters the sorting region of separation wheel；Material is along at the bottom of mill room Portion is back to the recirculation zone near nozzle.

Preferably, described feeding mechanism includes: the material charging aperture, the auxiliary gas that arrange on the body of feeding mechanism enter Mouthful joint C, material enter the feed pipe of mill room and are connected with air return plenums, the centrage of auxiliary gas entry joint C with Material enters the feed pipe centrage of mill room and overlaps, and the centrage that material enters the feed pipe of mill room is logical with mill indoor gas backflow The centrage in road is parallel at altitude azimuth, the centrage of mill indoor gas return flow line and the central axis of material charging aperture.

It is further preferred that be provided with control unit on described return flow line.

Preferably, at described nozzle fixed disk circumference to being uniformly fixed with several nozzles, each nozzle is each along radially With axial inclined in two-way.

It is further preferred that the angle of inclination a of described nozzle is-15 °～15 °；Angle of inclination b is-15 °～15 °.

Preferably, between described auxiliary gas connection B and the face, moved end of separation wheel and the static end face of nozzle fixed disk The blowback cleaning structure that gap connection is constituted.

Preferably, the surrounding at described motor base connect several auxiliary gas connection A connect structure with motor spindle gas circuit The main shaft cleaning structure become.

The advantage of fine powder air-flow grinding machine of the present utility model is embodied in:

1. include the outlet of material feeding mechanism, finished product material due to the machine, sort wheel-drive motor and be arranged on described thing Disintegrating area, mill room between feed inlet end and the described finished product material port of export of material feeding mechanism and sorting district.Wherein, described material The charging aperture connection auxiliary source of the gas directing material of feeding mechanism enters mill disintegrating area, room.Described disintegrating area and sorting district directly connect Logical, and connected with the effective seriality ensureing feed and equal by duplex channel with the feed inlet end of described material feeding mechanism Even property, working gas is formed the pulverizing air-flow tilting vortex and rotating round mill room revenue centre line by the nozzle of inclined in two-way, Air-flow drives coarse granule to hit roof, and micropowder guides sorting district simultaneously.Several nozzles are uniform along mill room revenue centre line Arranging, by inclined in two-way nozzle thus arranged, material drive is hit roof and pulverizes and guide by its rational air-flow of generation Powder is to sorting district, thus improves the distribution concentration degree of comminuted powder granularity；

2. the gap between auxiliary gas connection B and face, moved end and the static end face of nozzle fixed disk of separation wheel connects structure The blowback cleaning structure become, it is possible to prevent coarse granule to be discharged to products export district, advantageously ensure that finished product material quality；

3. motor base is provided with main shaft purge flow channel design, it is ensured that the continuous normal rotation of main shaft and raising use the longevity Life；

4. putting structure on the driving motor of the separation wheel of micronizer described in, its reasonable structural arrangement is readily disassembled；

5. the material charging aperture of feeding mechanism, auxiliary gas entry joint C, the feed pipe of material entrance mill room and gas return Circulation road is connected, and the centrage of auxiliary gas entry joint C enters the feed pipe centrage of mill room and overlaps with material, and material enters The centrage of the feed pipe entering to grind room is parallel at altitude azimuth with the centrage of mill indoor gas return flow line, and mill indoor gas returns The centrage of circulation road and the central axis of material charging aperture, the two ends of air return plenums form negative pressure, thus ensure auxiliary Help gas that material is blown into seriality when grinding chamber interior and uniformity；

6. in duplex channel increases control unit on the return flow line of mill limit, room wall, and control unit can control The size of reflux gas, it is simply that control the negative pressure of vacuum size that the two ends of air return plenums are formed.Material feeding mechanism is arranged In the mill chamber interior walls that eddy current circumferentially operates, namely grind on the tangent line of chamber lining；

7. it is rational in infrastructure, effectively solves distribution inadequate the asking of concentration degree of prior art processed finished products powder size Topic, application the machine is favorably improved product quality and reduces production cost.

Accompanying drawing explanation

Fig. 1 is fine powder air-flow mill structure schematic perspective view of the present utility model；

Fig. 2 is fine powder air-flow mill structure cross-sectional schematic of the present utility model；

Fig. 3 is to grind room 119 functional regional division schematic diagram in Fig. 2；

Fig. 4 is to grind room 119 inner-cavity structure schematic perspective view in Fig. 2；

Fig. 5 is feeding mechanism 109 structure cross-sectional schematic in Fig. 2；

Fig. 6 is nozzle fixed disk 112 structural representation in Fig. 2；

Fig. 7 is C-C cross-sectional schematic in Fig. 6；

Fig. 8 is D-D cross-sectional schematic in Fig. 6.

In figure: 100 fine powder air-flow grinding machines, 101 motors, 102 screw A, 103 motor bases, 104 screw B, 105 auxiliary gases Joint A, 106 upper covers, 107 screw C, 108 separation wheels, 109 material feeding mechanisms, 109-1 charging aperture, 109-2 control unit, 109-3 return duct, 109-4 feed pipe, 109-5 assists gas connection C, 110 mill outdoor cabinets, 111 mill chamber linings, 112 nozzles Fixed disk, 113 nozzles, 114 discharge linings, 115 finished product material outlets, 116 auxiliary gas connection B, 117 air inlet pipe, 118 support Plate, 119 mill rooms, 120 target discs, 121 holding screws, 122 adjusting pads, the 123 indoor housings of mill, 124 chassis, 125 auxiliary gases connect Head B fixes seat.

Detailed description of the invention

Specifically describe according to fine powder air-flow mill structure of the present utility model design and operation principle below according to diagram.Should Working as understanding, embodiment that is illustrated and that describe illustrates rather than restriction, and the structural design drawing of example and following description are originally The embodiment that utility model is combined is not intended as limit according to all embodiments of the present utility model.

Seeing Fig. 1-Fig. 8, fine powder air-flow grinding machine 100 of the present utility model includes: be equipped with adjusting pad on the main shaft of motor 101 122 and be fixed with separation wheel 108, motor 101 is connected on motor base 103 by screw A102, and motor base 103 passes through screw B104 is connected on upper cover 106, and upper cover 106 is connected in the gripper shoe 118 of mill outdoor cabinets 110 by screw C107.Motor The surrounding of seat 103 connects several auxiliary gas connection A105 and connects the main shaft cleaning structure constituted with motor spindle gas circuit.Mill Outdoor cabinets 110 is built-in with the indoor housing 123 of mill, and the indoor housing 123 of mill is successively by target disc 120 and mill chamber lining 111, mill room lining Set 111 contacts with nozzle fixed disk 112 composition, and the cavity of the indoor housing 123 of mill is mill room 119, is grinding indoor housing 123 The bottom of nozzle fixed disk 112 is fixed with several nozzles 113, and the nozzle fixed disk 112 of the indoor housing 123 of mill is put on chassis On 124, lower end, chassis 124 and auxiliary gas connection B fix seat 125 and are connected, and fix being connected on seat 125 at auxiliary gas connection B There are several to assist gas connection B116, are equipped with discharge lining 114 at the center of nozzle fixed disk 112 and chassis 124, at upper cover Holding screw 121 on 106 compresses the target disc 120 of the indoor housing 123 of mill.Separation wheel 108 end face and nozzle fixed disk 112 end face Between be provided with the gap adjusted by adjusting pad 122, the face, moved end of described auxiliary gas connection B116 and separation wheel 108 and nozzle The blowback cleaning structure that gap connection between the static end face of fixed disk 112 is constituted.Feeding mechanism 109 and air inlet pipe 117 are equal It is connected on the outer circumference surface of mill outdoor cabinets 110.Connect in the lower end of discharge lining 114 and have finished product discharging opening 115.

Seeing Fig. 2, the operation principle of this utility model fine powder air-flow grinding machine 100 is: fine powder air-flow grinding machine 100 includes same The Shi Liantong work arrival end air inlet pipe 117 that enters for air-flow of source of the gas and the discharging opening 115 for the discharge of finished product micropowder.Mill room 119 are directly connected by disintegrating area formed with sorting districts, and air-flow enters mill room 119, work gas from air inlet pipe 117 by nozzle 113 Body forms the eddy current favouring mill room 119 cylindrical cavity centrage in mill room 119, and eddy current circumferentially rotates simultaneously.Such as Fig. 5 institute Showing, material enters from the charging aperture 109-1 of feeding mechanism 109, and secondary air is blown into charging aperture from auxiliary gas connection C109-5 Bottom 109-1, entering mill room 119 by feed pipe 109-4, material is accelerated by the gas of nozzle 113 ejection, and material mutually collides While clash into target disc 120, thus material is pulverized.In order to improve crushing effect, this utility model is not limited to target disc 120 Shape and height and target disc 120 on whether variously-shaped target block is installed to promote crushing effect.

Micropowder imports the sorting district 119-5 at separation wheel 108 place under the vortex effect of air-flow.Now, motor 101 drives Separation wheel 108, utilizes centrifugal force field produced by its blade to sort micropowder, and finished product micropowder grain can follow air-flow through dividing The blade of choosing wheel 108 enters material outlet 115 and discharges, and coarse granule then can fall back to grind the bottom of room 119, returns nozzle 113 Near be circulated pulverizing again.As shown in figs 2-4, can be by optimizing the disintegrating area 119-2 and sorting district 119-5 of mill room 119 Between architectural feature reach the effect of Pre-sorting.Such as, increase height or the diameter of mill chamber lining 111, make air-flow at powder Optimal cyclonic separation region is formed between broken district 119-2 and sorting district 119-5.

Seeing Fig. 3, mill room 119 is divided into six functional areas, and the air-flow of nozzle 113 ejection drives the elevated areas of material 119-1；The crushing material region 119-2 that material clashes into target disc 120；Material under airflow function along target disc 120 end face stream Dynamic guiding area 119-3；Material is along the decline region 119-4 of target disc 120 center facade；Material enters separation wheel 108 Sorting region 119-5；Material is back to recirculation zone 119-6 near nozzle 113 bottom mill room 119.

Seeing Fig. 5, the material charging aperture 109-1 of feeding mechanism 109, auxiliary gas entry joint C109-5, material enter The feed pipe 109-4 of mill room is connected with air return plenums 109-3, the centrage of auxiliary gas entry joint C109-5 and thing Material enters the feed pipe 109-4 centrage of mill room 119 and overlaps.In mill room 119, air return plenums 109-3 centrage enters with material Material mouth 109-1 central axis.The two ends of air return plenums 109-3 form negative pressure, thus ensure to assist gas to be blown by material Seriality when entering to grind inside room 119 and uniformity.In some preferred form, wherein on return flow line, increase control unit 109-2, the size of control reflux gas is exactly the size of the negative pressure of vacuum of the two ends formation controlling air return plenums 109-3. Feeding mechanism 109 is arranged in mill room 119 inwall that eddy current circumferentially operates, namely on the tangent line of mill chamber lining 111.

See Fig. 6, some nozzles 113 that air-flow is pulverized in injection are carried out circumference to uniform cloth on nozzle fixed disk 112 Put.Each nozzle 113 is arranged along radial and axial inclined in two-way.By being arranged such, produce rational air-flow by material powder Broken and carry out sorting discharge product.Seeing Fig. 7, on C-C section, the angle of inclination a of nozzle 113 is-15 °～15 °；See figure 8, on D-D section, the angle of inclination b of nozzle 113 is-15 °～15 °.

Technology contents of the present utility model and technical characterstic have revealed that as above, it should be appreciated that above-mentioned enforcement exists is permitted Revising mode, these modes are clearly for various equivalent modifications more.These amendments and modification fall into this practicality In novel association area, it is included in the scope of appended claims.

Claims (8)

1. a fine powder air-flow grinding machine, is characterized in that, including: it is equipped with adjusting pad on motor spindle and is fixed with separation wheel, motor Being connected on motor base, motor base is connected in and covers, and upper cover is connected in the gripper shoe of mill outdoor cabinets, the surrounding of motor base Connecting and have several gas connections A cleaning motor spindle, mill outdoor cabinets is built-in with the indoor housing of mill, and the indoor housing of mill is successively By target disc and mill chamber lining, mill chamber lining contacts with nozzle fixed disk composition, and the cavity of the indoor housing of mill, for grinding room, is grinding room The bottom of the nozzle fixed disk of inner housing is fixed with several nozzles, and the nozzle fixed disk of the indoor housing of mill is put on chassis, the end Dish lower end is connected with the fixing seat of auxiliary gas connection B, is fixed with several auxiliary gas on the fixing seat of auxiliary gas connection B Body joint B, is equipped with discharge lining at the center of nozzle fixed disk and chassis, compresses the indoor housing of mill at the upper holding screw covered Target disc, be provided with the gap adjusted by adjusting pad, feeding mechanism and air inlet between separation wheel end face and nozzle fixed disk end face Guan Jun is connected on the outer circumference surface of mill outdoor cabinets, and connecting in the lower end of discharge lining has finished product discharging opening.

Fine powder air-flow grinding machine the most according to claim 1, is characterized in that, described mill room is divided into six functional areas being connected Territory, respectively: the air-flow of nozzle ejection drives the elevated areas of material；The crushing material region that material clashes into target disc；Material Along the guiding area of target disc end face flowing under airflow function；Material is along the decline region of target disc center facade；Material enters Enter the sorting region of separation wheel；Material is back to the recirculation zone near nozzle bottom mill room.

Fine powder air-flow grinding machine the most according to claim 1, is characterized in that, described feeding mechanism includes: at feeding mechanism Material charging aperture, auxiliary gas entry joint C, the feed pipe of material entrance mill room and the air return plenums phase arranged on body Connection, the centrage of auxiliary gas entry joint C enters the feed pipe centrage of mill room and overlaps with material, and material enters mill room The centrage of feed pipe is parallel at altitude azimuth with the centrage of mill indoor gas return flow line, mill indoor gas return flow line Centrage and the central axis of material charging aperture.

Fine powder air-flow grinding machine the most according to claim 3, is characterized in that, is provided with control unit on described return flow line.

Fine powder air-flow grinding machine the most according to claim 1, is characterized in that, at described nozzle fixed disk circumference to being uniformly connected Having several nozzles, each nozzle is each along radial and axial inclined in two-way.

Fine powder air-flow grinding machine the most according to claim 5, is characterized in that, the angle of inclination a of described nozzle be-15 °～ 15°；Angle of inclination b is-15 °～15 °.

Fine powder air-flow grinding machine the most according to claim 1, is characterized in that, described auxiliary gas connection B is dynamic with separation wheel The blowback cleaning structure that gap connection between end face and the static end face of nozzle fixed disk is constituted.

Fine powder air-flow grinding machine the most according to claim 1, is characterized in that, it is auxiliary that the surrounding at described motor base connects several Gas connection A is helped to connect the main shaft cleaning structure constituted with motor spindle gas circuit.